TSOP312 Vishay, TSOP312 Datasheet - Page 5

• Manufacturer Part Number: TSOP312
• Description: New Tsop312../tsop314.. - Ir Receiver Modules For Remote Control Systems - Vishay Infrared Receiver Modules
• Manufacturer: Vishay

Suitable Data Format
The TSOP31#.. series is designed to suppress
spurious output pulses due to noise or disturbance
signals. Data and disturbance signals can be
distinguished by the devices according to carrier
frequency, burst length and envelope duty cycle. The
data signal should be close to the band-pass center
frequency (e.g. 38 kHz) and fulfill the conditions in the
table below.
When a data signal is applied to the TSOP31#.. in the
presence of a disturbance signal, the sensitivity of the
receiver is reduced to insure that no spurious pulses
are present at the output. Some examples of
disturbance signals which are suppressed are:
For data formats with short bursts please see the data sheet for TSOP311../TSOP313..
Document Number 81745
Rev. 1.1, 03-Mar-08
• DC light (e.g. from tungsten bulb or sunlight)
• DC light (e.g. from tungsten bulb or sunlight)
• Strongly
Minimum burst length
After each burst of length
A gap time is required of
For bursts greater than
A minimum gap time in the data stream is needed of
Maximum number of continuous short bursts/second
Compatible to NEC code
Compatible to RC5/RC6 code
Compatible to Sony code
Compatible to Thomson 56 kHz code
Compatible to Mitsubishi code (38 kHz, preburst 8 ms, 16 bit)
Compatible to Sharp code
Suppression of interference from fluorescent lamps
fluorescent lamps with electronic ballasts (see
figure 15 or figure 16).
or
weakly
modulated
noise
from
Most common disturbance
signals are suppressed
> 4 x burst length
10 to 70 cycles
10 cycles/burst
New TSOP312../TSOP314..
16920
Figure 15. IR Signal from Fluorescent Lamp
16921
Figure 16. IR Signal from Fluorescent Lamp
TSOP312..
10 cycles
70 cycles
1800
yes
yes
yes
yes
yes
yes
0
0
with High Modulation
with Low Modulation
Lamp with High Modulation
IR Signal from Fluorescent
IR Signal from Fluorescent
Lamp with Low Modulation
10
5
Vishay Semiconductors
Time (ms)
Time (ms)
10
10
Even extreme disturbance
signals are suppressed
> 10 x burst length
10 cycles/burst
10 to 35 cycles
15
15
TSOP314..
10 cycles
35 cycles
1500
yes
yes
yes
yes
no
no
www.vishay.com
20
20
5